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Finding the Fourth Proportional to 73,479.80, 110,025.30 and 57,798.20

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Solution

The fourth proportional to 73,479.80, 110,025.30 and 57,798.20 is: 86,544.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,479.80 : 110,025.30 = 57,798.20 : x
  2. Step 2: Convert to fraction form
    73,479.80/110,025.30 = 57,798.20/x
  3. Step 3: Cross multiply
    73,479.80x = 110,025.30 × 57,798.20
  4. Step 4: Simplify right side
    73,479.80x = 6,359,264,294.46
  5. Step 5: Solve for x
    x = 6,359,264,294.46/73,479.80
  6. Step 6: Final answer
    x = 86,544.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.